Cover - shares	3 Months Ended
	Oct. 31, 2024	Dec. 09, 2024
Cover [Abstract]
Entity Registrant Name	My City Builders, Inc.
Entity Central Index Key	0001556801
Document Type	10-Q
Amendment Flag	false
Current Fiscal Year End Date	--07-31
Entity Small Business	true
Entity Shell Company	false
Entity Emerging Growth Company	false
Entity Current Reporting Status	Yes
Document Period End Date	Oct. 31, 2024
Entity Filer Category	Non-accelerated Filer
Document Fiscal Period Focus	Q1
Document Fiscal Year Focus	2025
Entity Common Stock Shares Outstanding		11,986,686
Entity File Number	000-55233
Entity Incorporation State Country Code	NV
Entity Tax Identification Number	27-3816969
Entity Address Address Line 1	100 Biscayne Blvd.
Entity Address Address Line 2	#1611
Entity Address Address Line 3	1611
Entity Address City Or Town	Miami
Entity Address State Or Province	FL
Entity Address Postal Zip Code	33132
City Area Code	786
Local Phone Number	553-4006
Document Quarterly Report	true
Document Transition Report	false
Entity Interactive Data Current	Yes